Dynamo-electric machine.



No. 830,849. PATENTED SEPT. Il, 1906.

W. E. RICHARDS & W. A. TURBAYNE.V

DYNAMO ELECTRIC MACHINE.

APPLICATION FILED AUG. I2, 1905.

3 SHEETS-SHEET 1.

PATBNTED SEPT. 11, 1906.

S L W. A. TURBAYNB.` DYNAMO ELECTRIC MACHINE.

W. P. RICHARD APPLICATION FILBDAUG. 12, 1905.'

N9.. 830,849. EATENTED SEEE. 11,1906.

W. E. RICHARDS C W. A. TUEEAYNE.

DYNAMC ELECTRIC MACHENE.

.APPLICATION FILED AUG. 12, 1905.

3 SHEETS-SHEET 3.

"Several-rotating parts Of the machines on the f .i sito.

UNiTE-n sfinfins' 'PATENT orricn.

y'urli-,Linn F. RicHARDs, or BUFFALO, Ann. wiLLiAM, Al'rUaBAYNE, or. LANCASTER., Nnwronir, AssicNoiis 'ro GoULD.ooUiLnnvcoMrANn or' Newv ronir, Y.

mimmo-ELECTRIC MAGHINI Speciication of Letters Patent'.

i1* f Application-Hired August 12,. 1905. Serial Nvo.`2'73,955.

.Tan-ail;y whom it may concern: -1 Be it known that we, WILLARD F. RICH- Anus, residing 'atBuffalm and WILLIAM A.

-' TURBAYNE, -residingv atk Lancaster, in the.

5 county ofv Erie, Stateof NeWYork, citizens of the United States, have invented a new and useful Improvement in Dynamo-Electric Machines, of .which the ifillowing is a specification.. io This invention relates to dynamo-electric machines,- and more particularly to the mechanical construction and arrangement of the parts of a. generating set employed in railwayecar lighting and composed of, two 15 vdynamos located side by side, with theirl armatures mounted on a common shaftand in which one of the machines is a' main genera. vtor and the Other'an auxiliar'ydynamo utilized in the regulationof the main generator.

" Oneohj ect of the invention is to secure the shaftJ by means which' simplify the manu- "facture and reduce *the construction-of the apparatusand enable, the parts thereof to be.-

aSSemblediLIi-d' dismantledwiththe minimum labor ai'id""loSSA of time; to completely inclose and protect the apparatus from -the weather .and from dust and'dirtand at the Sametime render-the various parts of the machine readr 53,

.ily accessible for* inspection, cleaning, `re. fi pairs, &c.; .to provide simple and'efl'icient lguard means for' preventing thek lubricating l' i oilfor bearings fromworking its wayonto the f armatures and cemmutatorsof the machines, landy to improiv the construction ofthe appa-l `.i-atii"s in the respects hereinafter vspecified and set. forth in the claimsrA In theaccompanying drawings, consisting l of--three sheets,F-igiire1-lis a longitudinal sec! tional elevation *off a dynamo-electric appalratiis embodying*the-invention. lFig. 2 is al y fragmentary side. elevation of 'theauxiliaryi g dynamo. -Fig. 3 is an end elevation, on an enlarged'scale, ei; the machine lookingl'roni the left in Fig..- 1.r

Fig.y 5 is a sectional elevation, on an enlarged s cale,-zin line 5 5, Fig.l 1.-

o'f 'theI shaft-bearings and cil-guards at the Aopposite endsof the main dynamo.

Fig. '4, is a transverse seca "f tional'elev'ation, on an enlarged scale thereof,

in line 4x4, Fig. l, looking toward the left;

" In the construction illustrated'the dissi-ri Figs. (i and 7 are` fragmentary sections, on` an enlzarged scale,l

Like letters of reference. rfifto like (parts in the several figures. p 'i "5 A represents the eldl-magn'et'frameor 5 5 of the main generator or dynamtff'and- A-and f B the armature and commutator, .which-farei secinedfon the armature-shaft@ Theiield- ,magnet frame, which preferabl consists fof an open-ended cylindrical shell,..isfseciiredimo any desired manner vto -a. suitable?,support,' usually the car-truck, "(not'fsrhowm) and constitutes the supporting-fianielfor the. -several parts of the apparatus,A y The ,oppositel ends of the hollow frame A are-closed by end sver 65 heads DA D,.Which are detachablyl'secuedtd ,the frame by bolted -orjother.- means. ...The .heads are preferably.,hollow, tliiisiorniiiig `lubricatingeehainbers for the armature-shaft, and the opposite wallst'hereof-are provided 7c V with central holesfin which areseciired'heai? :ing-bushin sdf d2 by setfscrewsxdior other means. T e hollowh'ead D, ,which-isitlie. left-hand head in'thedraw;ii'rgs`;f?hasan extended annularvportionlg@ which surrounds 7 5 thecoinmutatoi .of therinain dynamo and is i' provided with ,openings 'Figs lf'and 4, op'- posite tothe.r dynaniobiiushes efje through which openingsf'ac'cess,canifbe had., toftlie` .brushes foradjusting and renewinggthein or 8b for I any g other reasons? The roii'iniutator, `briishes,and brushlhold n'i'af'beluofwany usual or,suitahleiihrnig,y bv i itthe'f'bifiis i'gholcl ers representen dust cover markingwfli'ich'pw fen-cles the 'annular-portfihn"ofthe iciid'Dy 9o havnig the inspectionopenings I [The d ustiing -itsfvsnugly at, 'its iiiner'ra'nfd oueil ,edges` 011 the annular wallifii 4the#:head:.te'preventthe entrance of"dust, flirt., water. dim., Y into the iii:ich'iii`e"aid-is ,detac'liahlygscciirifdliii et 'Jpla'cc in some 'iiiaiinerJ ieriiiiitingli "cid'i lremoval"to exp'ose the i'nspciti n-r)penin is provided at itlsinner end niitlilthreehook.. Figsl and 3, whichengagcfiiiidcr ill"l `fheads :ce oi'two of the securiiig-loi, svgd .for theholln'i'v heath. When the bolts re rigiiteiiedjiip?the dustringis seciiielj,'liel 'biiif'it can he. reagif turning the dust-ring enough to di sengagc the' hooks. l`he main dynamo is completely niclosed l,and protected from t-lie weather and from {hc-dust and dirt; but. the removable dust-ring all'ords easy access ivo the brushes.

The arii'iaiure and coinniutaloi of the. mani dynamo are removably secured on the arma ture-shaft, preferablyas follows: The armaturc-shalt is enlarged in diameter between its ends and at one end of the enlarged central portion is provided with a shoulder or ilangc q. The armature and co'nimutator are carried by a sleeve G, which is keyed or spliiicd ou the large central portion ofthe shaft, with one end against one side *if 'the'sh'oulder g. Surrounding the shaft on the bpposite side or the shoulder g is a clamping-sleeve y', Figs. 1 and having perforated lugs through wi'iich pass screws into threaded holes in the armature-sleeve. By tightening the screws the two sleeves are drawn up tightly against opposite sides of the shoulder and iirnily secured. This manner of securing the armature-sleeve is much superior to the usual method of fastening the armature on the shaft by a nut or nuts screwed on a. threaded part of the shaft, as in such case special threads must be cut on the shaft and nut, and it is a matter of considerable difficulty to attachaiid detach the part-s,`usually necessitating special tools. Then, too, the armature is liable to work loose when itis driven in opposite directions, as it is when the apparatus is used in car1ighting.` By' the construction deseribed the armature can be quickly and easily attached' anddetached with an ordinary wrench and cannot work loose by reason 'of the rot-ation of the armature in opposite directions.

H represents the field-magnet frame, and H the armature of the4 auxiliary dynamo. This auxlliary field-magnet frame, like that of the vmain dynamo, preferably consists ot an open-ended shell or ring and is detachably secured at its inner end to he outer end ot' the head .D oi the main frame., as by screws 7i. To the outer end of the auxiliary field-frame H is detachably secured, by screws h', a ring I, which supports the brushes t' of the aluxillary dynamo. AThe open out-er -end oi' this brush-supporting ring is closed by a cap or cover K, which is removably secured in place by some suitable means, preferably by bayonet-j oints formed by screws la, which projecfu i'roni the sides of the brush-supporting ring I and engage in angular slots 7c in the rim of the. cap. When the screws are tightened, the cap is securely held in place, and by loosening the screws the cap can be detached in a well known manner. The auxiliary dynamo is thus also completely inclosed and protected against the entrance Iof water, dust, &c.; but its brushes can be. easily seen and reached for any purpose by removing the' remove the brushes and their holders, this caribe done with little trouble by detaching the brushsuppori'ing ring I. One end ofthe arn'iaturwshait C rejects out through the head D of the main ynamoiframe and has securedthereen the armature H and commutator l of the auxiliary dynamo. Thesev are preferably carried by a sleeve Z', which surrounds the reduced pro-v jecting end of the shaft against ay shoulder thereon and is detachably secured iii place by a removable pin or key l2.

The opposite end of the shaft projects from the other head D of the main dynamo-frame, and on this end of the sliaf t is detachably'secured a chain-wheel )I or other wheel for driving "the armature-shaft. The end of the sha-it is preferably reduced and the wheel splined thereon and secured by a nut m, screwed on the threaded end of the shaft and held from turning by a set-'screw m.

By the described construction the parts of both machines are completely housed or inclosed and protected, and yet access can-be easily had to the brushes of the main inachineiby removing the dust-ring F or to those of the auxiliary machine by removing the cap K; The fields-magnet frame and brushholders of the auxiliary machine can be quickly detached from the main machine by reiiiovingzthe screws 7i, conne :ting the fieldfraine, and the armature and commutaoor can then be slipped ofi' of the armature-shaft w ien necessary by first removing the securing pin or key 2* 'for the armature-sleeve.

machine can also be then removed, together with the armature-shaft by-detaching the right-hand head D or' the main machine and drawing the parts out of the right-hand end of the iield-frameof the main machine. The armature and commutator of lche main machine can also be removed without first dis- 'mantling the auxiliary machine, by detaching the drive-wheel M and then detaching the left-hand `head D of the main machine-frame a id removing the same, together with thi a maturessha'lt and parts secured thereto. The left-hand head D oi the main machine, together withthe brushes secured thereto and the auxiliary machine, with all of the parts intact, can also be removed to getal. thcimainmachine brushes without disturbing the armature of the .main lmachine by 'first removing the securing-pin Z2 for the armature- `sleeve of the auxiliary machine and slipping the parts off of the ari'nature-shaft.

T0 pre 'ent the lul'iricating-oil for the heari ings from working oiito the armature and coinniutator ol" the maiii'n'iz'icliiiie, the inner i walls of the hollow heads D D are provided around the bearing-openingsI for the armamagnet lframe with the head of the main IOO The ari'nature and con'ii'uutator of the main IIO ture-shaft with annular catch-pockets N N. cap K. If it is necessarv vfor ,any reason to i for the oil, formed by circular flanges with i y v i assises li'ni'fur'ned 'inner edges. lEach catch-pocket force -iiito the catch-pockets to be re-v turned to 'the' lubricatingfchambers. through the-drainfholes'n and will thus be prevented vfrom 'reaching lthe 'armature 'and-commuter.

:12.01% v "j The armature of the auxiliary 'dynamo is ow head D 'and into' which the grooved end of vthe armature-sleeve ofthe auxiliary dy .i naino projects, v ,j The bearings and lubrcat'ors for the arma- -tuefshafsan by. the described construction helocated at opposite endsof 'the main dy'-` 'I'ilamoarmature -and one' between the two machines without danger of the oil getting goverfthe armatures'and commutatore of the in described 'as dynamos; but the construcdynamoniotor. u eclaiir'r as our vinventioIi---z l "IlThe combinationjof a main `field-magnet frame, .heads closing the ends :of said '.fli'riain" frame and provided with armature- Laici.shaftbearings'7 an armature-shaft journaled saidlbearin'gsand projecting out through 'one ot said heads, a main armature on said shaft andinclosed by. said mainframe and fheadsj an auxiliary' armature securedto the roecting end of said shaft, an auxilia el -r'xi'agnet frame surrounding said auxif -i'aiy armature and secured to the adjacent head of said main frame', and a cover closing the' outer end of said auxiliary frame,l sub` T5o' istantially as set forth.

lThe combinationl of a main field-magrameremovable heads closing the ends 'lof'. said main frame andprovided with arma- '.tureeshaft bearings, anHarrriature-shaft journaled in said bearings and projecting out through one of' said heads, va main armature on said shaft and inclosed by said main frame land heads, an auxiliary armature removably vsecured to the projecting end ofsaid shaft, fan auxiliary field-magnet frame surrounding said auxiliary cured to the adjacent head of said main traine, and a removable cover or head closing ,the outer end oi' said. auxiliary frame, substantially as set forth.

'also-*kept tree" from oilfby a similar catch- ,ooket Q, formed in the outer wall of the hol-` r tion described would be equally applicable to.

' Q 4frame, substantially as set forth.

porting frame,

armature and removably se- 3.. The combination'oi main and auxiliary. dynamo-electric inachinesarranged in axialalinement and having an armature-shaftin common, a Ihollow headlocated between vand detachably connecting the field-magnet frames o the two machines, ,brushes forythe main machines carried by 'said head, said head together withsaid brushes and the Tauxiliary field-frame and armature being removable as a unit from the field-magnet frame of said mainmachine and said armature-shaft, and said auxiliary held-magnet frame and ar'- mature being also detachable from said head and armatureshaft, substantially as set forth.l

4. The combination ofmain and auxiliary dynamo-electric 'machines arranged in axial alineinent, ahead located between the fieldrnagnet frames ofsaid main ,and auxiliary machines-and closing one end of each-heldmagnet frame, said head having openings,

and a'cover-ring 'which surrounds* said head and is movable-to expose said openings,`sub

stantially as set forth.

-5. The combination of main and auxiliary dynamo-electric machines arranged in axial alinement, ahead located between the eldmagnet frames of said main" and auxiliary machines and closing one end of each fieldma et frame, said head having an annular wal which is of larger diameter than s aid auxiliary field-magnet frame and is provided withojoeningsj and a detachable. cover-ring which surrounds said annular wall and isre# movable over said auxiliary held-magnet 6,. The combination of m'ain and4 auxiliary dynamc-.electric machines arranged in axial aliiiement, a head located between the .fieldimagnet frames of said main and 'auxiliary machines and closing one end of each fieldina net frame, a brush-supporting ring de tac ably secured to the outer e'nd offthe auxiliary fieldmagnet frame, and a removable cover closing the outer end of the brushsupsubstantially as set forth.

7. The combination of main and auxiliary dynamo-electricmachines arranged in axial alinement, a head located between the iield- Vmagnet frames :of said main and auxiliary machines and closing one end of each iieldi magnetl frame, brushes for said main niachine carried by said head and removable therewith from themain held-magnet frame, a brush-supporting ring detachably secured to the outer end of the auxiliary field-magnet frame, and a removable cover closing the outer end' of the brush-supporting frame, substantially as set forth.

8. `The combination of main and auxiliary dynamo-electric machines arrangedl in axial alinementj a hollow head which .is located between andconnects the field-magnet frames of said main and auxiliary machines and incloses the commutator and brushes for the main machines, said head having-a lubricating-chamber, a shaft for the mn'zures of Witness our hands @his 55th "my of Augufbl. said main and auxiliary machines juurnaed 1905. in said hollow head, and oil-g1 1ards at op`p0- WILLARD E site ends 0f the lubricating-chnmbr of lsaid WLLIAM A.. T

"HA R E S. hollow head 'to pre-vent oil from working Ntnessost onto the armatures of the 'mn-in and auxiliary FIDWMD. ihm, machmes, substmltmily as set forth. C'. B. Hmm rai-@5, 

